algorithmic modeling for Rhino



Welcome to Metahopper - a tool for controlling Grasshopper with Grasshopper :)

This library contains a number of components and commands for querying and manipulating Grasshopper components dynamically. You can retrieve components and objects based on their type, their library, the group they're in, or by selecting them directly - or even get all the objects in a document at once. You can then retrieve information about these components + parameters, the libraries they belong to. You can also manipulate objects directly: enabling/disabling, turning preview on and off, changing the color of groups, the text and size of scribbles, and the shape of sketch objects.

MetaHopper also adds a new menu to the Grasshopper document editor, that wraps up several functions:

BestPracticize Selection lets you pick a group and auto-insert params for all the inputs and outputs coming into/out of the group. This makes for nice, tidy functional groupings that make your Grasshopper code easier to read. 

Save Snippet improves on an earlier script I released - it lets you select any group of components + objects and save them as a single user object - without needing to cluster them. This is useful when you want things saved that have internal UI elements - like a graph mapper or slider for instance - that you want to be able to manipulate with the reusable chunk of code you're saving.

Bottleneck Navigator opens up a window that lets you see all the components in your definition, sorted by their "Runtime" - how long it took them to execute. You can click on any item in the list and zoom to it instantly - so that you can find opportunities for optimization in your definition.

Download it here!

Members: 230
Latest Activity: Sep 8, 2023

Component Listing


Set Group Properties

Set the name, color, and style of a group.

Control Wire Display

Control the display of wires for parameters and components.

Set Scribble Properties

Set the text, size, and font of a Scribble.

Hide/Show Object Preview

Programmatically control the preview visibility of specified objects

Rename Object

Programmatically set the nickname of specified objects

Enable/Disable Object

Programmatically enable/disable solving for specified objects

Set Sketch

Modify the form of an existing sketch object.

Bake Object

Programmatically bake the geometry of specified objects

Wire Display Toggle

Switch all document wires between hidden and faint.



Converts a standard GH Slider into a variable input to the Batch Driver

Batch Animator

Saves a screenshot of every state of the model in the batch to a folder.

Batch Variable from List

Converts a list of values such as a series or range into a variable input to the Batch Driver


Run a batch analysis across a range of variable parameters


Param Info

Gets information about param objects

Object Info

Gets basic information from any DocumentObject

Assembly Info

Gets information about an assembly

Component Info

Get information about a component object. Retrieve components with Document Info, Get Attached Component, or Get Selected Component.

Document Info

Get information about the GH document and its components

Object Retrieval

Get Groups

Get all groups in the document

Get Connected Objects

Gets all components and params connected to this component

Get Objects of Same Library

Gets all components and params that are from the same library as the attached.

Get Selected Objects

Get the objects currently selected on the canvas

Get Scribbles

Get all Scribbles in the document

Get Objects of Same Type

Gets all components and params that are of the same type as the attached.

Get Objects in Group

Gets all components and params in the same group as this component (or the specified group if supplied)


Best Practicizer

Takes a selected group and inserts input and output params at both edges for any data that goes outside the group.

Highlight Objects

Highlight objects by adding them a new group

Set Object Value

Tries to set the value of an object. What value it sets varies by type - it sets a slider’s numeric value, a panel or scribble’s text contents, etc

Relative Path

Appends the directory this definition is saved in to a file path. Auto-converts the contents of a text panel containing an absolute path

Discussion Forum

how to save snippets... in the new version

plsthe most  attractive functionwheres it nowthank you very muchContinue

Started by weilai Apr 10, 2019.


Please refer all metahopper-related questions to the metahopper category on discourse: …Continue

Started by Andrew Heumann Nov 1, 2018.

Enable/Disable inside of clusters 2 Replies

Hi Andrew,I am attempting to use your Enable/Disable toggle inside of a cluster and it does not appear to work.  Is it possible I am doing something wrong or is this a known issue?Your plug-in is…Continue

Started by Ben Pearce. Last reply by Ben Pearce Jul 11, 2018.

Enable/Disable not working properly inside a Cluster

Hey guys,I'm using the MetaHopper Enable/Disable component inside a Cluster and I realized that it only updates when I change a parameter (check the "Components Inside Cluster" part of the example…Continue

Tags: metahopper

Started by jeffchicarelli Jul 4, 2018.

Comment Wall


You need to be a member of MetaHopper to add comments!

Comment by Andrew Heumann on November 1, 2018 at 7:26am

This forum is no longer in use. Please refer all metahopper-related questions to the Metahopper section of the discourse forum:

Comment by Leland Curtis on October 31, 2018 at 3:51pm

How do you edit the properties of a .ghuser file?

Once I save a snippit using metahopper, I have to recreate it if I want to update it. Is there an easy way to rename the category or subcategory of many .ghuser files at once?


Comment by TJ on June 5, 2018 at 8:26pm

I know... it is strange though. It maybe a coincidence. How long does it take to drop the component in your computer?

Comment by Andrew Heumann on June 5, 2018 at 8:09pm
That’s not even a metahopper component. Almost certainly unrelated
Comment by TJ on June 5, 2018 at 8:01pm

After replacing metahopper with its latest version I noticed a change in the deployment of the Read File component. What once was instantaneous, it is taking 9 seconds just to deploy the component in the screen after selection. Check image attached. I changed back to the previous version and the delayed deployment remained the same. Any idea of what could have caused it?

Comment by anas_hosney on May 25, 2018 at 3:49pm
Comment by Omer G on September 17, 2017 at 3:34am

Got it. Thanks for the quick response and again for the plugin!

Comment by Andrew Heumann on September 15, 2017 at 9:51am

Hi Omer - 

Unfortunately there is no way around this because HoneyBee and LadyBug are not technically "plugins" as far as Grasshopper is concerned - they are just collections of user objects that wrap python scripts. 

Comment by Omer G on September 14, 2017 at 5:36am


First of all - Thanks for this plugin. It. Is. Awesome. I love it.

Second - the DocumentInfo tool doesn't show HoneyBee and LadyBug in the plugin list. Is there a way around this? or a fix?


Comment by Andre Philippi on September 3, 2017 at 5:59am

Thank you Amir!


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